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In this activity, learners make "totally tubular" forms of carbon. Learners use chicken wire to build macro models of carbon nanotubes.

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity, learners use squares to figure out how many border tiles are needed to enclose different areas.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this sorting activity, learners play a game in which they try to identify the largest number of differences between two objects.

free Ages 8 - 11 10 to 30 minutes
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In this activity, learners practice counting and multiplication as they figure out how many animal body parts they have to examine as "Dr. Vet."

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners develop their understanding of combinations as they create as many different kinds of tostadas as possible.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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In this activity, learners investigate whether more people are squares or rectangles. People with similarly sized heights and arm spans are classified as squares.

free Ages 6 - 11 10 to 30 minutes
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Create a “Find Someone” list, with about 10 items, each containing a shape, number, or measurement. Can you find someone in the group with hair about 4 inches long? Someone wearing parallel lines?

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume.

1 cent - $1 per student Ages 11 - 14 10 to 30 minutes
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In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this activity (located on page 10 of the PDF), learners explore the properties of spraying and dripping water, while making art.

$5 - $10 per group Ages 4 - 8 10 to 30 minutes
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En esta actividad, los aprendices leen sobre como Mateo y Cientina conducen una investigación forense para descubrir quien llevó unos dulces.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this math activity, learners use cubes to calculate how many blocks it would take to build stairways with different heights.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes
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In this activity, learners follow clues to find five puzzle pieces, then assemble them. This activity works well with a whole group, individuals, or families.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners combine counting, area and perimeter concepts as they prepare the seating arrangement for a family reunion dinner.

1 cent - $1 per group Ages 6 - 8 10 to 30 minutes
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In this interactive activity, learners analyze seashells to explore phylogeny and evolution. Learners identify similar and dissimilar seashells to create a phylogenetic tree.

free Ages 11 - 18 10 to 30 minutes
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In this activity, learners compete to be the first to win twenty counting pieces. First, learners draw patterns on only one side of four craft sticks.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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This is a deceptively simple game to teach strategy, planning, and pattern analysis. In this game, learners take turns removing tokens from a board, and develop a plan to take the last piece.

free Ages 4 - 14 10 to 30 minutes
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In this activity, learners investigate balance and symmetry by designing a symmetrical butterfly, using a paper cutout.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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In this activity, learners explore patterns and sequences as they observe fictional plant growth.

$1 - $5 per group Ages 4 - 8 10 to 30 minutes